Water-heater.



- H. s. HUMPHRBY;

WATER HEATER. A I A APPLICATION FILED 0GT.18, 1911. ,033,896. Patented July 30,` 1912.

Z SHEETS-SHEET 1.

H..S. HUMPHREY.

WATER HEATER. I APPLIOATION FILED ocT.1s, 1911.

2 SHEETS-SHEET z,

Patented July 30, 1912.

HERBERT S. HUMPHREY, 01E' KALAMAZOO, MICHIGAN.'

WATER-HEATER..

Specification of Letters Patent.

Patented July 30, 1912.

Application filed October 18, 1911. Serial No. 655,415.

To all whom t may concern.' v

Be it known that I, HERBERT S. HUM- PHREY, a citizen of the United States, residing at the city of Kalamazoo, county of Kalamazoo, and Stateof Michigan, have invented certain new and useful Improve ments in VVater-Heaters', of which the 4following is a specification.

This invention relates to improvements in water heaters.

In water heating systems where the water is maintained at a comparatively uniform temperature by means of a thermostat located in the system which controls the ,fuel valve, much heat is lost owing to the heater ,becoming a' radiator through which vthe water circulates when the heat is cut off.

It is the main object of my invention to provide an improved valve mechanism by which the circulation ofthe water through the heater is cut olf when the temperature of the water in the reservoir or system is above a predetermined point and the fuel valve isvcut olf.

A further object is to provide a struct-ure possessing these advantages which is simple and economical and not likely to get out of repair.

Further objects, and objects relating to structural details, will definitely appear from the detailed description to follow.

I- accomplish the objects of my invention by the devices and means described in the following specification.

The invention is clearly defined and pointed out inthe claims.

A structure which is a preferred embodiment of my invention is clearly illustrated in the accompanying drawing, forming a part of this specification, in which:

Figure I is a detail side elevation of a structure embodying the features of my invention, the heater beiner shown in conventional form, the casing being indicated b y ldotted lines, and a portion of the reservoir wall being broken away to show the arrangement of the thermostat therein. Fig. II

is a detail vertical section taken on a line corresponding to line 2 2 of Fig. I. Fig. III is an enlarged detail vertical section taken on a line corresponding to the broken line 3-3 of Fig. II, the parts being shown in full lines for convenience in illustration.l -Fig. IV is a detail side elevation looking from the right of Fig. II. Fig. V 'is a detail Section taken on' the broken line .5T-5. of Fig. IV. A

In the drawing, similar reference characters refer to similar parts throughout the several views, and the sectional views are taken looking in the direction of the little arrows at the ends of the section lines.

Referring to the drawing, the heater is provided with coils l which are shown in conventional form and with burners 2. The casing 3 is indicated by dotted lines. The heater is connected to the reservoir or tank 4 by the pipes 5 and 6, pipe 5 being the inlet pipe for the heater and the pipe 6 the discharge pipe. The water supply is delivered to the reservoir 4 through the pipe 'l'. The water is drawn off from the reservoir through the faucet 28. The' burners 2 are supplied from the gas supply pipe 8. The supply of fuel to the burners is controlled by the valve 9, while the water pipe 5 is controlled by the circulation valve 10.

The fuel valve casing 11 and the water or circulation valve casing 12 are preferably formed integrally as illustrated and are also preferably provided with an integrally formed bracket 13 ,whichis provided with a nipple-like projection 14 arranged through the wall of the reservoir to receive the outer thermostat member or tube 15. "Within this tube 15 is a second thermostat member 1G. This rod member 16v actsinpon the thermostat lever 17 which is pivoted at 1 8 on the bracket 13. The lever 17, in turn, acts upon the thermostat lever 19 which is pivoted at 2O on the water valve casing 12. The water valve actuating lever 22 is pivoted at 23 and interposed between the thermostat lever 19 and the stem 23 of the fuel valve 19 (see Fig. III).

The water valve 10 is of the hinged type, itsstem 24 being pivoted in the valve casing. On the outer end of the stem 2li is an arm 2,5 which is connected by the link 26 to the lever 22. The fuel valve is returned to its seat by the spring 27 and as the lover 22 is en- 'substantial savingof fuel.

the temperature of the Water? in the reset voir or circulating system rises abov'e a pre-.v

determined pointA when the thermostat mem- -ber 16 is retracted` allowing the spring 27 to close the valves. This stops the circulation through the Waterheater. This results inv a valve, no injury can' result to the heater as might occur if the fuel valve were turned on` Without the heater.lv y Y Y l have illustrated and described my ifnproved valve mechanism in a simple and illustrate or describe' the various modifications whichare possible as such modifications will no doubt be readily understood byv those skilled in the art to which this invention relates. l desire, however; to be understood as.` claiming myl improvements specifi? cally rin. the 'term illustrated as-,wellies broadly withinV the'` scope of {theappended claims. 'f'

lflavin thuss described] my invention, what l c' aim as newv and desire to secure by Letters Patent iss'-V f .L

i. The combination-of tewater heater'5'a .reservoirhaving a circulating connection with said heater; ahinged-circulation valve;

a thermostat arranged in said reservoir ya fuel valve for. said heater; a return sprin vttor said fuelvalve; circulation and fue which 'said thermostat is secured, mounted? onf said tank; a thermostat lever pivoted on said bracket; a second thermostat" lever 'pivoted on the circulation valve casing, the

first lever being arranged to act on the second; a circulation valve actuating lever pivoted on said bracketA and interposed between said second thermostat lever and the stem ci? the fuel valve;an arm onthe stem ot 'the said circulation valve; and a link connecting said, arm lto said circulation valve actuating lever.

2. lfhe combination oit a water heater; a reservoir. .having a circulating connection' with saidk heater; ahinged circulation valve; a thermostat arranged in said tank; a fuel valve for said heater; a return spring for said fuel valve; a circulation valvey actuating lever interposed between said thermostat lever and the stem of the fuel valve;

an arm on the stem of the said circulation valve; and a link connecting said arm to said circulation valve actuating lever.

3. The combination of a Water heater; a hinged valve; a thermostat arranged in said tank; a fuel ,valve for said heater; a return spring for said fuel valve; a Water valve actuating lever interposed between said `thermostat lever and the stem of the fuel valve; an arm on the stem of the said water valve; and a llink connecting said-arm to said""water valve actuating lever.

4. The combination of a water heater; a

thermostat arrangedin said circulation sys tem; a thermostat actuated member; a fuel valve; a hinged circulation valve; a circulation valve actuating lever lnterposed between the stem `of the fuel valve and said thermostat actuated member; anA arm on the circulation of water through the stein of said circulation valve; a 4link connectmgr sald arm to said lever; and a return spring for saidv fuel valve.. y5. The combination of a water heater; a lprzwtical form. I have not attempted to circulation, system including said heater; a

i thermostat arranged in said circulation system; a thermostat' actuated member; a fuel valve; a circulation gvalve.; a circulation valve actuating lever interposed between the stem of the fuelvalve and said thermostat actuated memberPNvvhereby' the fuel` and circulation valves are simultaneously opened by 'the thermostat; and a'spring for closing said valves acting on said fuel valve.

.6.' I`he combination of a water heater; a reservoir having a' circulating connection Withs'aidheater; a .thermostat 1n said reservoir; 'a circulation valvegfand a `fuel valve,

,said `tlnrmostat,being arranged to simultaneously open and close said fuel and circulation valves. v` v 7'." The combination of a water heater; a reservoir having acirculating connection with-"saidheater; :a thermostat; a circulation valve; anda fuel valve, said thermostat j being arrranged to actuate both said fuel and said circulation valve whereby they are simultane'cusl :opened circulation system including said heater; a

8. The com ination'of'a water heater; a

circulation Vsystem including said heater; a thermostat in said circulation system; a circulation valve controlling the passage of water' from thecirculation system to said heater; and a' fuel valve for said heater, said thermostat bein arrangedv to actuate said fuel and circulation valves to simultaneously open and close the same.- 9. The combination of a; -water heater; a circulation system, including saidV heater; a thermostat in said circulation system; a circulation valve controlling the passage of Water from the circulation ysystem to said heater; and a fuelvalve for said heater, said thermostat being arranged to close said circulation and fuel valves when the temperature of the water in the circulation sys# tem exbeeds a predetermined point.

10.,The combination of ak Water heater; a circulation system, including said heater; athermostat in said circulation system; and a circulation valve `controlling the passage of water from the circulation system to said heater, said thermostat being ar- Loeeee ranged ie eua o the delve'y of fuel to the heater and to dese seid 'exjeuetd Valve when the emperature of he Water reaches a, pxedetermnet point. u

y il. The eembnatene' a Water heater; :fee e'ife'y moans; a thermostat; and Cimueen Valve eentolling the passage ei' Waer wml the ereuaton system te kemer, seid themaset being arranged eut time elvery of fuel to the heater 

